CN103266666B - Bamboo structure prestress conversion connector - Google Patents
Bamboo structure prestress conversion connector Download PDFInfo
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- CN103266666B CN103266666B CN201310185622.1A CN201310185622A CN103266666B CN 103266666 B CN103266666 B CN 103266666B CN 201310185622 A CN201310185622 A CN 201310185622A CN 103266666 B CN103266666 B CN 103266666B
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- wedge shape
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- wedge
- sleeve
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Abstract
The invention relates to a bamboo structure prestress conversion connector. The bamboo structure prestress conversion connector comprises a round casing tube, a connector body, a wedge-shaped inner casing tube and a wedge-shaped expansion rod, wherein the wedge-shaped inner casing tube and the wedge-shaped expansion rod are arranged inside the round casing tube; one end of the round casing tube is a closed end, the other end of the round casing tube is an open end, and the center of the closed end is provided with an expansion rod driving bolt which extends towards the open end; the outer diameter of the wedge-shaped inner casing tube is uniform, the inner diameter of the wedge-shaped inner casing tube is variable, and the wall thickness of the wedge-shaped inner casing tube is increased continuously in the axial direction of the wedge-shaped inner casing tube to form a wedge shape; the wedge-shaped expansion rod is set as a wedge-shaped round rod piece with variable cross sections and arranged inside the wedge-shaped inner casing tube; and the gradient of the inner surface of the wedge-shaped inner casing tube is identical to that of the outer surface of the wedge-shaped expansion rod, and the center of the wedge-shaped expansion rod is provided with a bolt hole matched with the expansion rod driving bolt. The bamboo structure prestress conversion connector is easy to process and manufacture, is rapid in installation due to the fact that no concrete materials need to be poured, can achieve a plug-and-play installation, is convenient to assemble and disassemble and recyclable, cannot generate waste and can facilitate environmental protection.
Description
Technical field
The invention belongs to building engineering field, relate to a kind of bamboo structure prestressing force crossover sub.
Background technology
Bamboo wood is a kind of natural green recyclable materials comparatively widely that the earth distributes, and has higher specific strength and the advantage such as specific stiffness and pliability.The bamboo timber resource of China is very abundant, be widely used in the various aspects of industrial and agricultural production and life for a long time, particularly after the 2010 World Fair, various circles of society pay attention to the sustainable development of low-carbon environment-friendly more, people begin one's study again how this ancient material application in modern architecture field, make it again shine the new youth.
In order to enable bamboo wood more be widely used in modern architecture field, one of its key point how to solve the connectivity problem between bamboo wood.Uncontrollability due to bamboo wood growth course determines the scrambling of its bore, wall thickness uniform section physical dimension, and bamboo wood can not have good dimensional stability as through manually manufacturing the shaped steel produced.Therefore, in the past in the productive life of 1,100, people adopt the modes such as colligation, Tenon, bolt, sleeve to be connected by bamboo wood always, and bonding strength and rigidity are difficult to be protected, thus directly have influence on bamboo structure intensity, rigidity and stability, constrain the application of bamboo wood.
Authorization Notice No. is CN2761727Y, name is called in the Chinese patent literature of " the former bamboo structure node for Dai's bamboo tower " to describe commonly uses joint structure for former bamboo structure, wherein yi word pattern, T-shaped, X-type, L-type node etc. are by the complete node that runs through of one or more former bamboo, suspension column structure adopts metal rim of a cup concrete perfusion mode to be strengthened node, although add the construction measures such as bolt at Nodes, the Rigidity and strength connected is also unreliable; Authorization Notice No. CN202117176U, name is called that " a kind of bamboo structured connecting joint " and Authorization Notice No. are CN202023258U, name be called in the Chinese patent literature of " a kind of bolt-sphere connecting node of bamboo structure " individually disclose two kinds for bamboo structure connect steel nodes, its principal character is that steel node is connected with the mode adopting embedded bar to add filling concrete between bamboo wood.The mode Problems existing of this connection is: the adhesion strength between concrete and bamboo wood is very low, relative sliding can be there is between the two, axial force cannot be transmitted by concrete, therefore in most of the cases, axial force in fact mainly carries out transmitting by cross reinforcing rib between bamboo wood and stirrup, stress concentration phenomenon can be produced at the contact point of bamboo wood and stirrup, the load that connection can be transmitted depends on the crushing strength between cross reinforcing rib and bamboo wood completely, the anti-splitting ability of bamboo wood, contact point place can destroy prior to bamboo wood, the supporting capacity of bamboo wood can not be given full play to.
Due to the unreliability connected, existing Structural Analysis Theory and finite element method and laboratory facilities can not in depth be applied in the analytical calculation of bamboo structure.
Due to the variety of problems that bamboo structure connection aspect exists, the range of application of bamboo structure receives very large restriction, is generally mainly used in the not high provisional building structure of importance or manufactures sheet material.And the ball node that the steel structure net rack widely applied at present and truss adopt and plate node are one very sophisticated node forms, if bamboo wood can be interconnected by ball node or plate node, the bamboo structure of composition steel node, is bound to greatly promote that bamboo wood is in the application of building engineering field.The key addressed this problem finds the crossover sub between a kind of bamboo wood and steel node, and can make its bonding strength and rigidity all higher than bamboo wood self-strength and rigidity make.
Summary of the invention
In order to overcome above-mentioned defect of the prior art, the invention provides one and installing simply, connect reliable bamboo structure prestressing force crossover sub.
In order to realize foregoing invention object, technical scheme of the present invention is: a kind of bamboo structure prestressing force crossover sub, comprise circular sleeve and connector, also comprise the wedge shape inner sleeve and wedge shape expansion rod that are positioned at circular sleeve, described circular sleeve one end is set to blind end, the other end is set to openend, the center of described blind end is provided with the expansion rod extended to openend and drives bolt, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is variable diameters, its wall thickness increases continuously in wedge shape along its axis direction, described wedge shape expansion rod is set to the circular rod member in Wedging cross section, and be positioned at wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, described wedge shape expansion rod center is provided with the bolt hole driving bolt to mate with expansion rod.
Described circular sleeve is nested in the outer wall of bamboo end, the effect of " pipe collar " can be played around the outer wall of bamboo wood, restriction bamboo wood is along the distortion in its wall thickness direction, expansion rod on wedge shape expansion rod and round buss drives bolt to coordinate, when rotating described circular sleeve, expansion rod can be driven to drive bolt to screw in the bolt hole of wedge shape expansion rod, thus drive wedge shape expansion rod to move along its axis direction, wedge shape expansion rod moves vertically and embeds in wedge shape inner sleeve, wedge shape inner sleeve diameter is increased, described wedge shape inner sleeve is positioned at bamboo wood inside, increase with wedge shape inner sleeve diameter, extruding bamboo wood inwall, fit in wedge shape inner sleeve and circular sleeve, make bamboo wood and this crossover sub compact siro spinning technology.
Preferably, described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is made up of conically shaped and shrouding, shrouding is positioned at conically shaped top, circular sleeve blind end is connected bottom conically shaped, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar portion, head is positioned at conically shaped, bar portion is positioned at outside conically shaped, and bolt sleeve and shank of bolt all offer chute, and bolt sleeve and shank of bolt are interconnected by chute by described pin.
Preferably, described wedge shape inner sleeve circumferentially has the otch of several and its axis being parallel, and the length of described otch is less than the length of wedge shape inner sleeve.
Wedge shape inner sleeve arranges otch, makes more easily to expand under the extruding of wedge shape expansion rod under wedge shape inner sleeve.
Preferably, described connector is set to junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
Preferably, described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube are directly provided with cross reinforcing rib.Wedge shape expansion rod adopts hollow-type structure to have from heavy and light, rigidity is moderate, bamboo wood cross section compliance is good feature.
Preferably, described wedge shape expansion rod is integral type entity structure.
Preferably, described circular sleeve is provided with some screws, and screw is provided with trip bolt.
The invention has the beneficial effects as follows:
(1) wedge shape expansion rod can make the circumferentially outer expansion of wedge shape inner sleeve, thus makes the bamboo wood between circular sleeve and wedge shape inner sleeve be subject to very large extruding force.Consider the non-circular geometrical feature of bamboo material transversal surface, if circumferentially offer some in the end of bamboo wood with the otch of bamboo wood axis being parallel, then the contact between circular sleeve and bamboo wood can be made more even, connect more firm;
(2) firm and reliable connection, can not be produced because of junction stress concentration phenomenon, can be delivered on node by circular sleeve by the internal force of bamboo wood equably.Also make existing Structural Analysis Theory, finite element method and experimental technique can be applied in the analytical calculation of bamboo structure, the application of bamboo wood can be expanded widely;
(3) the crossover sub processing and fabricating described in is simple, due to without concrete perfusion material, so install fast, can realize plug and play; Convenient disassembly simultaneously, recyclable recycling, can not produce discarded object, be conducive to environmental protection;
(4) crossover sub described in can adapt to the bamboo wood of various sectional dimension and shape, applied range.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the present invention 1;
Fig. 3 is Figure 1A-A position sectional view;
Fig. 4 is the assembling process schematic diagram of the embodiment of the present invention 1;
Fig. 5 is the connection diagram between the bamboo structure prestressing force crossover sub of the embodiment of the present invention 1 and ball node;
Fig. 6 is the decomposition texture schematic diagram of the embodiment of the present invention 2;
Fig. 7 is the assembling process schematic diagram of the embodiment of the present invention 2;
Fig. 8 is the connection diagram between the bamboo structure prestressing force crossover sub of the embodiment of the present invention 2 and truss gusset plate.
Detailed description of the invention
Below in conjunction with concrete the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
As Figure 1-3, the bamboo structure prestressing force crossover sub of the present embodiment comprises: circular sleeve 1, wedge shape inner sleeve 3, wedge shape expansion rod 4, trip bolt 5, expansion rod drive bolt 7 and connector, described connector comprises conehead, shank of bolt 10, bolt sleeve 11 and pin 12, and described conehead comprises conically shaped 8, shrouding 9.
Circular sleeve 1 one end is set to blind end, the other end is set to openend, the center of described blind end is provided with the expansion rod extended to openend and drives bolt 7, the external diameter of wedge shape inner sleeve 3 is equal diameter, internal diameter is variable diameters, its wall thickness increases continuously in wedge shape along its axis direction, described wedge shape expansion rod 4 is set to the circular rod member in Wedging cross section, and be positioned at wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve 3 is identical with the wedge shape expansion rod 4 external surface gradient, and described wedge shape expansion rod 4 center is provided with the bolt hole driving bolt 7 to mate with expansion rod.
Circular sleeve 1 is nested in the outer wall of bamboo wood 2 end, the effect of " pipe collar " can be played around the outer wall of bamboo wood 2, restriction bamboo wood 2 is along the distortion in its wall thickness direction, expansion rod on wedge shape expansion rod 4 and round buss 1 drives bolt 7 to coordinate, when rotating described circular sleeve 1, expansion rod can be driven to drive bolt 7 to screw in the bolt hole of wedge shape expansion rod 4, thus drive wedge shape expansion rod 4 to move along its axis direction, wedge shape expansion rod 4 moves vertically and embeds in wedge shape inner sleeve 3, wedge shape inner sleeve 3 diameter is increased, it is inner that wedge shape inner sleeve 3 is positioned at bamboo wood 2, increase with wedge shape inner sleeve 3 diameter, extruding bamboo wood 2 inwall, fit in wedge shape inner sleeve 3 and circular sleeve 1, make bamboo wood 2 and this crossover sub compact siro spinning technology.
Shrouding 9 is positioned at conically shaped 8 top, circular sleeve 1 blind end is connected bottom conically shaped 8, circular hole is provided with in the middle of described shrouding 9, shank of bolt 10 is arranged in circular hole, described shank of bolt 10 comprises head and bar portion, and head is positioned at conically shaped 8, and bar portion is positioned at outside conically shaped 8, bolt sleeve 11 and shank of bolt 10 all offer chute, and bolt sleeve 11 and shank of bolt 10 are interconnected by chute by described pin 12.
Wedge shape inner sleeve 3 circumferentially has the otch of several and its axis being parallel, and the length of described otch is less than the length of wedge shape inner sleeve 3.Wedge shape inner sleeve arranges otch, wedge shape inner sleeve is more easily expanded under the extruding of wedge shape expansion rod.
Wedge shape expansion rod 4 comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube are directly provided with cross reinforcing rib.Wedge shape expansion rod 4 adopts hollow-type structure to have from heavy and light, rigidity is moderate, bamboo wood cross section compliance is good feature.According to the actual requirements, wedge shape expansion rod 4 also can adopt monolithic entity structure.Described circular sleeve 1 is provided with some screws, screw is provided with trip bolt 5.Trip bolt 5 is the secure components for fixing described circular sleeve and bamboo wood after crossover sub installs, often group comprises two trip bolts, often between group, the angle of circumference at interval is generally 90 °, and the diameter of screw and length are determined depending on the concrete condition such as sectional dimension and wall thickness of bamboo wood.
As shown in Figure 4, the number of assembling steps of the present embodiment is:
A the opening side of shank of bolt 10 from conehead is inserted the hole of shrouding 9 by (), be enclosed within shank of bolt 10 by bolt sleeve 11 outside the shrouding of conehead, and fixes with pin 12, assembles conehead part;
B the conehead part assembled is welded on circular sleeve 1 by ();
C wedge shape inner sleeve 3 is enclosed within the expansion rod be fixed on circular sleeve 1 and drives on bolt 7 by ();
D wedge shape expansion rod 4 inserts in wedge shape inner sleeve 3 by (), rotational circle sleeve pipe 1, drives expansion rod to drive bolt 7 to screw in the bolt hole of wedge shape expansion rod 4, assembles crossover sub;
E () smears resin glue 6 in the end of bamboo wood 2, the crossover sub assembled is nested in the end of bamboo wood 2, then continues rotational circle sleeve pipe 1 along clockwise direction, until crossover sub is firmly connected with bamboo wood 2, installs trip bolt 5.
As shown in Figure 5, the bamboo wood 2 installing crossover sub can adopt the ball node connected mode generally used in structural steelwork to form various space structures.Rotate the hexagon bolt sleeve 11 of crossover sub end with hexagon bolt wrench, drive shank of bolt 10 to screw in the bolt hole of bolted spherical node 13, until hexagonal socket 11 and bolted spherical node 13 compress.When bamboo wood bears pulling force effect, the pulling force of bamboo wood 2 is passed to bolted spherical node 13 by shank of bolt 10; When bamboo wood bears pressure, the pressure of bamboo wood 2 is passed to bolted spherical node 13 by bolt sleeve 11.
Embodiment 2,
As Fig. 6, the distinguishing characteristics of the present embodiment and embodiment 1 is: described connector is set to junction plate 14, and described junction plate 14 one end is connected with circular sleeve 1, and the other end is provided with groove.It is identical with embodiment 1 that other do not state part.The connector of the present embodiment is used for being connected with truss gusset plate, and the connector of embodiment 1 is used for being connected with bolted spherical node.
As Fig. 7, the number of assembling steps of the present embodiment is:
A junction plate 14 is welded on circular sleeve 1 by ();
B wedge shape inner sleeve 3 is enclosed within the expansion rod be fixed on circular sleeve 1 and drives on bolt 7 by ();
C wedge shape expansion rod 4 inserts in wedge shape inner sleeve 3 by (), rotational circle sleeve pipe 1, drives expansion rod to drive bolt 7 to screw in the bolt hole of wedge shape expansion rod 4, assembles crossover sub;
D the crossover sub assembled is nested in the end of the bamboo wood 2 smearing resin glue 6 by (), then continue rotational circle sleeve pipe 1 along clockwise direction, until crossover sub is firmly connected with bamboo wood 2, installs trip bolt 5.
As shown in Figure 8, be embedded on truss gusset plate 15 by reeded for band junction plate 14, and junction plate 14 and truss gusset plate 15 weld by groove, can form truss structural, the internal force of component is also balanced mutually by junction plate 14 junction and truss gusset plate 15.
Claims (7)
1. a bamboo structure prestressing force crossover sub, comprise circular sleeve and connector, it is characterized in that: also comprise the wedge shape inner sleeve and wedge shape expansion rod that are positioned at circular sleeve, described circular sleeve one end is set to blind end, the other end is set to openend, the center of described blind end is provided with the expansion rod extended to openend and drives bolt, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is variable diameters, its wall thickness increases continuously in wedge shape along its axis direction, described wedge shape expansion rod is set to the circular rod member in Wedging cross section, and be positioned at wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, described wedge shape expansion rod center is provided with the bolt hole driving bolt to mate with expansion rod.
2. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is made up of conically shaped and shrouding, shrouding is positioned at conically shaped top, circular sleeve blind end is connected bottom conically shaped, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar portion, head is positioned at conically shaped, bar portion is positioned at outside conically shaped, bolt sleeve and shank of bolt all offer chute, bolt sleeve and shank of bolt are interconnected by chute by described pin.
3. bamboo structure prestressing force crossover sub according to claim 1, is characterized in that: described wedge shape inner sleeve circumferentially has the otch of several and its axis being parallel, and the length of described otch is less than the length of wedge shape inner sleeve.
4. bamboo structure prestressing force crossover sub according to claim 1, is characterized in that: described connector is set to junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
5. bamboo structure prestressing force crossover sub according to claim 1, is characterized in that: described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube are directly provided with cross reinforcing rib.
6. bamboo structure prestressing force crossover sub according to claim 1, is characterized in that: described wedge shape expansion rod is integral type entity structure.
7. bamboo structure prestressing force crossover sub according to claim 1, is characterized in that: described circular sleeve is provided with some screws, and screw is provided with trip bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310185622.1A CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310185622.1A CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103266666A CN103266666A (en) | 2013-08-28 |
| CN103266666B true CN103266666B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310185622.1A Expired - Fee Related CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
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| CN (1) | CN103266666B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3503253B2 (en) * | 1995-03-30 | 2004-03-02 | 旭硝子株式会社 | Truss structure |
| CN100554623C (en) * | 2008-04-18 | 2009-10-28 | 湖南大学 | A kind of double-sleeve prestressed reinforcing steel thimble connector and sleeve pipe thereof connect job practices |
| CN101408039A (en) * | 2008-11-18 | 2009-04-15 | 昆明理工大学 | Bamboo-wood mixed structure of house architecture |
| CN101929201B (en) * | 2010-07-28 | 2012-01-18 | 罗轶 | Compound foamed bamboo connection structure |
| CN201884845U (en) * | 2010-12-07 | 2011-06-29 | 谭海英 | Quick connector for assembly of pipeline flexible connection |
| CN203284890U (en) * | 2013-05-20 | 2013-11-13 | 浙江科技学院 | Bamboo structure prestress changeover connector |
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2013
- 2013-05-20 CN CN201310185622.1A patent/CN103266666B/en not_active Expired - Fee Related
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| CN103266666A (en) | 2013-08-28 |
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Inventor after: Wen Xianmin Inventor after: Zhang Yunlian Inventor after: Yang Jianhui Inventor after: Jiang Luzhen Inventor before: Wen Xianmin Inventor before: Zhang Yunlian Inventor before: Yang Jianhui |
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